Research shows that allergens such as dust mites, drool, mildew, mold and many human factors make our pillows unhealthy after 2 or 3 years. So I suggest that we replace our pillows every 3 years at the max. In between that time toss your pillow in the dryer on the highest hottest setting. Add a few new tennis balls to fluff them and rid of some allergens. When was the last time you bought a new pillow. I know its so hard to get used to a new one but you should really replace your pillow every 2 years. Most people think that because they change the pillowcase that they are fine, but that is not the case. When we are sick we lie on that pillow, hung over, strep throat, flu, etc… We lie on our pillow. Think about that the next time you change your sheets. Austin maid service Round rock maid service Eco friendly cleaning Austin and round rock one home at a time